Whoa Buddy !

[Sharecropper]

This is what I am talking about !

https://bulletcars.com/superchargers/chevrolet/chevy-diesel-engine/

 

[LT67]

I didn't look real close; what were the power numbers on that set up?

 

[Sharecropper]

300 hp on my P400.

 

[Curtisje]

300 hp on my P400.

I want to see a picture of yours Sharecropper.

 

[Rutjes]

That intake plenum would look cool on a turbo charged engine. Wonder if they sell them separately...

 

[MarcusOReallyus]

And how long will it hold together?

 

[Sharecropper]

And how long will it hold together?

I’ll let you know when it comes apart. I’m only going to drive it real slow every Saturday when I carry Miss Daisy down to da Piggly Wiggly.

 

[Greasy]

 

[gimpyrobb]

Why supercharging over turbo? Did you change the compression ratio? Ball park price tag? So many questions!

Looks friggin sweet!

 

[gimpyrobb]

Is that an air conditioning compressor mount I see?

 

[LT67]

I’ll let you know when it comes apart. I’m only going to drive it real slow every Saturday when I carry Miss Daisy down to da Piggly Wiggly.

You may have to explain what the Wiggly Pig is.... lol

 

[Sharecropper]

Why supercharging over turbo? Did you change the compression ratio? Ball park price tag? So many questions!

Looks friggin sweet!

Hey Gimp - where you been man? Good to hear from you.
I will not answer your first question because it would probably start a firestorm of debate which I have no desire to engage. Your second question, no I didn’t change the compression ratio because there is no need to with this P400. I uh, ahem, assume you know what a P400 is .

Your third question, yes, you could probably buy a ball park for what this thang is gonna cost. But remember- my daughter will never miss the cash that I am about to shell out for it. After all , it’s her inheritance that I am spending . If you click on the link you can see the price. The one I’m getting is the 3-V belt model at the bottom. I’ve been back-and-forth with the engineer at Bullet in Australia about all the details.

Everything about the kit will bolt up to my P400. My only concern was whether the CUCV throttle bracket would clear the supercharger snout, but we worked through and solved that issue today. I will still need to fabricate my own fresh air supply and filter but heck that will be easy. Bullet has different diameter snout pulleys to provide different amounts of boost, which is instant and constant by the way. No turbo lag! I’ll probably start off with the 65 mm diameter pulley which will provide 8-11 pounds of boost. If the P400 wants more, I can change the 65 mm to a 70 mm and get 9-14 pounds.

The IP will need to be recalibrated to 250 hp for the 65 mm pulley and 300 hp for the 70 mm. It should be fun playing with it. I am changing from the OEM fuel lift pump to an electric with a mechanical fuel pressure gauge. Bullet also offers a water-to-air intercooler which fits into the manifold under the compressor. It can be added later if necessary by simply dropping it in place and then remote-mounting the radiator and electric pump. The manifold comes already set-up for the intercooler with blank-off plates on the rear for the water fittings.

I’m sending my new DB2 pump back to Huckstorf to have a 31 mm pump plunger and rotary head installed to feed the extra fuel for 250-300 hp. The re-worked pump will satisfy 250 hp but can be turned up to satisfy 300 hp. I’ll just have to get it running and on the road to see where the screw needs to be.

 

[Sharecropper]

You may have to explain what the Wiggly Pig is.... lol

Piggy Wiggly supermarket. Didn’t you see Driving Miss Daisy?

 

[Sharecropper]

Is that an air conditioning compressor mount I see?

Yes. I had already mounted a new Sanden AC compressor prior to discovering the Bullet supercharger. I had set up the compressor to be driven from a custom crankshaft pulley and V-belt. Now that I am going with the supercharger, I will need to change the pulley on the Sanden to a 6-rib belt to piggyback off the Supercharger crank pulley. That is one of the things I had to work out with Bullet. I’ve already received the complete Vintage Air kit to add AC.

 

[Keith_J]

Going to be real busy at the front main bearing with v belt drive.

 

[Sharecropper]

Going to be real busy at the front main bearing with v belt drive.

Yes. The P400 can handle it.

 

[Keith_J]

Realize at those numbers, that blower is going to consume 25 Hp at 3600 RPM..proportional to engine speed regardless of throttle. Meaning boost when not needed which dilutes part throttle cylinder temperature..
Gasoline engines get away with a blower either with a bypass or having the blower pull through. In the latter, manifold vacuum reduces mass flow so there is no parasitic loss at part throttle.

Turbo engines are throttle linked as they operate off exhaust heat. So boost at part throttle is limited. Turbines with variable geometry are even better as back pressure is minimized.

I'm not saying a blower won't work on a diesel, it just needs a bypass circuit linked to the throttle. Otherwise part throttle flame quench is possible. Instead of rolling coal, you will roll snow

 

[LT67]

Piggy Wiggly supermarket. Didn’t you see Driving Miss Daisy?

Oh I'm well aware... I was at the Wiggly Piggy this evening grabbing a few things

 

[Rutjes]

What injection pump is going to be on there? And how is it managed? Does it come with a stand alone computer, kinda like a transmission controller when doing a 4L80E swap?

 

[Sharecropper]

What injection pump is going to be on there? And how is it managed? Does it come with a stand alone computer, kinda like a transmission controller when doing a 4L80E swap?

DB2-4811 mechanical pump built by Huckstorf Diesel in Wisconsin. 31 mm plunger and rotary head. Calibrated to 250 hp with capability to up-screw based on engine requirements of the supercharger. No computer. To my knowledge, there has never been a supercharger installed on a P400 engine, so all of this is uncharted water. I plan to abandon the new HMMWV lift pump and install a new AC DELCO electric fuel pump with a mechanical fuel pressure gauge T’d in just before the injection pump to monitor that there is adequate fuel to satisfy the HP requirements. I’m just going to have to get it all together and then get it on the road to see what adjustments will be needed. The whole process will be fun.